package com.example1.demo;

import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.Arrays;

@SpringBootApplication
public class DemoApplication {
    @Configuration
    public class beantext {
        @Bean
        public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
            return args -> {
                System.out.println("由springboot注册的所有bean");
                String[] beanNames = ctx.getBeanDefinitionNames();
                Arrays.sort(beanNames);
                for (String beanName : beanNames) {
                    System.out.println(beanName);
                }
            };
        }
    }

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

}
